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首页> 外文会议>Advances in X-ray analysis (ICDD2001) >Measurement of Residual Stresses in Fiber Reinforced Composites Based on X-Ray Diffraction
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Measurement of Residual Stresses in Fiber Reinforced Composites Based on X-Ray Diffraction

机译：基于X射线衍射的纤维增强复合材料残余应力测量

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摘要

X-ray diffraction (XRD) measurements have been made to determine residual stresses in embedded Al particles placed between the first and second ply of both unidirectional and fabric graphite/PMR-15 composite specimens. In order to further verify the results obtained, the effect of externally applied four-point bending on the measured strains and stresses in the Al inclusions was investigated. In the modeling part of this research, the state of stress in these inclusions was calculated using visco-elastic laminated plate theory and the Eshelby method. The numerical solutions for different concentrations of inclusions were subsequently compared with the experimental results. It has been shown that the thermal residual stresses in graphite/polyimide composites can be determined with reasonable accuracy by using X-ray diffraction from embedded inclusions in conjunction with the application of the Eshelby method.
机译：已经进行了X射线衍射（XRD）测量，以确定位于单向和织物石墨/ PMR-15复合样品的第一层和第二层之间的嵌入Al颗粒中的残余应力。为了进一步验证获得的结果，研究了外部施加四点弯曲对Al夹杂物中测得的应变和应力的影响。在本研究的建模部分中，使用粘弹性层压板理论和Eshelby方法计算了这些夹杂物中的应力状态。随后将不同浓度的夹杂物的数值解与实验结果进行了比较。已经表明，通过使用嵌入物的X射线衍射并结合Eshelby方法，可以以合理的精度确定石墨/聚酰亚胺复合材料中的热残余应力。

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  • 来源
  • 会议地点 Steamboat Springs CO(US);Steamboat Springs CO(US);Steamboat Springs CO(US)
  • 作者

    B. Bcncdikt; P. K. Prcdccki; L. Kumosa; P. Rupnowski; M. Kumosa;

  • 作者单位

    Center for Advanced Materials and Structures Department of Engineering University of Denver 2390 South York St., Denver, Colorado 80208;

    rnCenter for Advanced Materials and Structures Department of Engineering University of Denver 2390 South York St., Denver, Colorado 80208;

    rnCenter for Advanced Materials and Structures Department of Engineering University of Denver 2390 South York St., Denver, Colorado 80208;

    rnCenter for Advanced Materials and Structures Department of Engineering University of Denver 2390 South York St., Denver, Colorado 80208;

    rnCenter for Advanced Materials and Structures Department of Engineering University of Denver 2390 South York St., Denver, Colorado 80208;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 X射线、紫外线、红外线;
  • 关键词

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